/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesCommon/Public/Online/OnlineExecHandler.h
Todo: how to get this to work without it triggering on every class? static_assert(sizeof(T) == -1, "If you are hitting this, you are using a TVariant with a value that does not have a TOnlineVariantVisitInfo! Make sure you are adding a TOnlineVariantVisitInfo for your class! (Check LastType or FirstType below for the type that needs attention)");
static const TCHAR * Prefixes = {TEXT("[GARBAGE]")};